Highly recommended!
My girlfriend and I stayed in Ms. Oranee's apartment for a few days and loved it.
The two rooms provide a pleasant amount of space, and the air conditioning was amazing in the Bangkok heat. The apartment is down a small alley making it incredibly peaceful and no city noise is heard.
It is a minor inconvenience that the bathroom is on the ground floor while the accommodation is on the 1st floor, and also that there is no running water or sink in the two rooms.
Outside there is filtered water for drinking and a washing machine to use which are both fantastic features.
Asiatique is only a very short walk away, and Saphan Taksin metro stop is easily reached by bus, or for something more novel - the river boat.
The location and facilities make this a great place to stay, and if I were to return to Bangkok I would try to stay here again.